He is a socialist who wants to help the poor.

A person who believes in or supports socialism, a political and economic system where the government owns and controls the means of production.
She identifies as a socialist and advocates for workers' rights.
The socialist party is gaining popularity in the region.
Many socialists believe in equal access to education.
socialist ideas
socialist policies
socialist movement
leftist
progressive
communist
They discussed socialist policies at the meeting.

Relating to or characteristic of socialism or socialists.
The socialist movement gained traction in the city.
She identified as a socialist from a young age.
Many socialist ideas focus on equality.
socialist government
socialist ideology
socialist principles
leftist
progressive
communist